Trial Outcomes & Findings for Investigating Hearing Aid Frequency Response Curves 2 (NCT NCT05828017)
NCT ID: NCT05828017
Last Updated: 2025-03-18
Results Overview
Participants will be asked to wear hearing aids and as they are exposed to listening environments. They will be asked to toggle between the two hearing aid programs (standard curve and variation #1) and determine which program provides increased listening comfort. Participants will be asked to make these ratings while seated in a sound booth. Scores will be tallied at the end to see which program of the two was preferred more in the different listening environments. Scores can range from 0 (the program was not preferred at all) to unlimited (dependent on the numbers of trials ran and samples tested). Higher scores will indicate that the program was preferred more than the other program and lowers scores mean the program was not preferred when compared to the other program.
COMPLETED
NA
25 participants
10 Minutes
2025-03-18
Participant Flow
Recruitment was conducted via an internal database. Participants were recruited from May 2023 - October 2023. Participants were mainly contacted via email or telephone and only seen at the listed study locations.
All participants were exposed to all interventions. After enrollment and prior to testing, when applicable participant's hearing loss was assessed to confirm no significant changes from their baseline test. If a change in hearing loss was detected, it was evaluated to determine if the change was sufficient to place the participant outside the study's inclusion criteria. If so, the participant would be removed from the study.
Participant milestones
| Measure |
Participants With Hearing Loss
Individuals with hearing loss that meet the candidacy to wear hearing aids. All interventions are associated with the fitting of binaural hearing aids with various coupling methods. All participants will be assessed under all interventions.
Hearing Aid - Standard Curve: Our current hearing aids which will be programmed to our standard frequency response curve.
Hearing Aid - Variation #1: Hearing aids that will have the frequency response curve adjusted and fit to the participant's hearing loss.
|
|---|---|
|
Intake and Consent Form Completion
STARTED
|
25
|
|
Intake and Consent Form Completion
COMPLETED
|
25
|
|
Intake and Consent Form Completion
NOT COMPLETED
|
0
|
|
Review of Intake and Hearing Test Result
STARTED
|
25
|
|
Review of Intake and Hearing Test Result
COMPLETED
|
24
|
|
Review of Intake and Hearing Test Result
NOT COMPLETED
|
1
|
|
Break Between Appointments 1 and 2
STARTED
|
24
|
|
Break Between Appointments 1 and 2
COMPLETED
|
24
|
|
Break Between Appointments 1 and 2
NOT COMPLETED
|
0
|
|
Live Sound Quality Ratings
STARTED
|
24
|
|
Live Sound Quality Ratings
COMPLETED
|
24
|
|
Live Sound Quality Ratings
NOT COMPLETED
|
0
|
|
Break Between Appointments 2 and 3
STARTED
|
24
|
|
Break Between Appointments 2 and 3
COMPLETED
|
24
|
|
Break Between Appointments 2 and 3
NOT COMPLETED
|
0
|
|
US Matrix Test Task
STARTED
|
24
|
|
US Matrix Test Task
COMPLETED
|
24
|
|
US Matrix Test Task
NOT COMPLETED
|
0
|
|
Streaming Sound Quality Ratings Task
STARTED
|
24
|
|
Streaming Sound Quality Ratings Task
COMPLETED
|
24
|
|
Streaming Sound Quality Ratings Task
NOT COMPLETED
|
0
|
Reasons for withdrawal
| Measure |
Participants With Hearing Loss
Individuals with hearing loss that meet the candidacy to wear hearing aids. All interventions are associated with the fitting of binaural hearing aids with various coupling methods. All participants will be assessed under all interventions.
Hearing Aid - Standard Curve: Our current hearing aids which will be programmed to our standard frequency response curve.
Hearing Aid - Variation #1: Hearing aids that will have the frequency response curve adjusted and fit to the participant's hearing loss.
|
|---|---|
|
Review of Intake and Hearing Test Result
Removed by Investigator due to hearing loss change and no longer meeting study criteria.
|
1
|
Baseline Characteristics
Race and Ethnicity were not collected from any participant.
Baseline characteristics by cohort
| Measure |
Participants With Hearing Loss
n=25 Participants
Individuals with hearing loss that meet the candidacy to wear hearing aids. All interventions are associated with the fitting of binaural hearing aids with various coupling methods. All participants will be assessed under all interventions.
Hearing Aid - Standard Curve: Our current hearing aids which will be programmed to our standard frequency response curve.
Hearing Aid - Variation #1: Hearing aids that will have the frequency response curve adjusted and fit to the participant's hearing loss.
|
|---|---|
|
Age, Categorical
<=18 years
|
0 Participants
n=25 Participants
|
|
Age, Categorical
Between 18 and 65 years
|
7 Participants
n=25 Participants
|
|
Age, Categorical
>=65 years
|
18 Participants
n=25 Participants
|
|
Age, Continuous
|
67.92 years
n=25 Participants
|
|
Sex: Female, Male
Female
|
14 Participants
n=25 Participants
|
|
Sex: Female, Male
Male
|
11 Participants
n=25 Participants
|
|
Region of Enrollment
Canada
|
25 Participants
n=25 Participants
|
|
Hearing Thresholds - PTA (500,1000,2000,4000 Hz)
|
56 Decibals in Hearing Level (dB HL)
n=25 Participants
|
PRIMARY outcome
Timeframe: 10 MinutesParticipants will be asked to wear hearing aids and as they are exposed to listening environments. They will be asked to toggle between the two hearing aid programs (standard curve and variation #1) and determine which program provides increased listening comfort. Participants will be asked to make these ratings while seated in a sound booth. Scores will be tallied at the end to see which program of the two was preferred more in the different listening environments. Scores can range from 0 (the program was not preferred at all) to unlimited (dependent on the numbers of trials ran and samples tested). Higher scores will indicate that the program was preferred more than the other program and lowers scores mean the program was not preferred when compared to the other program.
Outcome measures
| Measure |
Participants With Hearing Loss
n=20 Participants
Individuals with hearing loss that meet the candidacy to wear hearing aids. All interventions are associated with the fitting of binaural hearing aids with various coupling methods. All participants will be assessed under all interventions.
Hearing Aid - Standard Curve: Our current hearing aids which will be programmed to our standard frequency response curve.
Hearing Aid - Variation #1: Hearing aids that will have the frequency response curve adjusted and fit to the participant's hearing loss.
|
|---|---|
|
Sound Quality Ratings - Listening Comfort - Program 1
Mean # of times Standard Curve was preferred in terms of listening comfort.
|
4.78 Mean Preference Counts per Participant
Standard Deviation 2.49
|
|
Sound Quality Ratings - Listening Comfort - Program 1
Mean # of times Variation #1 curve was preferred in terms of listening comfort.
|
6.04 Mean Preference Counts per Participant
Standard Deviation 2.16
|
|
Sound Quality Ratings - Listening Comfort - Program 1
Mean # of times there was no preference between the two curves in terms of listening comfort.
|
2.36 Mean Preference Counts per Participant
Standard Deviation 1.6
|
PRIMARY outcome
Timeframe: 10 MinutesParticipants will be asked to wear hearing aids and as they are exposed to listening environments. They will be asked to toggle between the two hearing aid programs (standard curve and variation #1) and determine which program they prefer to listen to. Participants will be asked to make these ratings while seated in a sound booth. Scores will be tallied at the end to see which program of the two was preferred more in the different listening environments. Scores can range from 0 (the program was not preferred at all) to unlimited (dependent on the numbers of trials run and samples tested). Higher scores will indicate that the program was preferred more than the other program and lowers scores mean the program was not preferred when compared to the other program.
Outcome measures
| Measure |
Participants With Hearing Loss
n=20 Participants
Individuals with hearing loss that meet the candidacy to wear hearing aids. All interventions are associated with the fitting of binaural hearing aids with various coupling methods. All participants will be assessed under all interventions.
Hearing Aid - Standard Curve: Our current hearing aids which will be programmed to our standard frequency response curve.
Hearing Aid - Variation #1: Hearing aids that will have the frequency response curve adjusted and fit to the participant's hearing loss.
|
|---|---|
|
Sound Quality Ratings - Overall Preference - Program 1
Mean # of times Standard Curve was preferred in terms of overall preference.
|
4.83 Mean Preference Counts per Participant
Standard Deviation 2.62
|
|
Sound Quality Ratings - Overall Preference - Program 1
Mean # of times Variation #1 curve was preferred in terms of overall preference.
|
5.85 Mean Preference Counts per Participant
Standard Deviation 2.28
|
|
Sound Quality Ratings - Overall Preference - Program 1
Mean # of times there was no preference between the two curves in terms of overall preference.
|
2.33 Mean Preference Counts per Participant
Standard Deviation 1.76
|
PRIMARY outcome
Timeframe: 10 minutesParticipants will be asked to wear hearing aids and as they are exposed to listening environments. They will be asked to toggle between the two hearing aid programs (standard curve and variation #1) and determine which program has better speech clarity. Participants will be asked to make these ratings while seated in a sound booth. Scores will be tallied at the end to see which program of the two was preferred more in the different listening environments. Scores can range from 0 (the program was not preferred at all) to unlimited (dependent on the numbers of trials ran and samples tested). Higher scores will indicate that the program was preferred more than the other program and lowers scores mean the program was not preferred when compared to the other program.
Outcome measures
| Measure |
Participants With Hearing Loss
n=20 Participants
Individuals with hearing loss that meet the candidacy to wear hearing aids. All interventions are associated with the fitting of binaural hearing aids with various coupling methods. All participants will be assessed under all interventions.
Hearing Aid - Standard Curve: Our current hearing aids which will be programmed to our standard frequency response curve.
Hearing Aid - Variation #1: Hearing aids that will have the frequency response curve adjusted and fit to the participant's hearing loss.
|
|---|---|
|
Sound Quality Ratings - Speech Clarity - Program 1
Mean # of times Variation #1 was preferred in terms of speech clarity
|
3.00 Mean Preference Counts per Participant
Standard Deviation 1.27
|
|
Sound Quality Ratings - Speech Clarity - Program 1
Mean # of times Standard Curve was preferred in terms of speech clarity
|
3.24 Mean Preference Counts per Participant
Standard Deviation 1.56
|
|
Sound Quality Ratings - Speech Clarity - Program 1
Mean # of times there was no preference between the two curves in terms of speech clarity
|
2.73 Mean Preference Counts per Participant
Standard Deviation 1.8
|
PRIMARY outcome
Timeframe: 10 MinutesParticipants will be asked to wear hearing aids and as they are exposed to listening environments. They will be asked to toggle between the two hearing aid programs (Standard curve and variation #1) and determine which program has more noise intrusion. Participants will be asked to make these ratings while seated in a sound booth. Scores will be tallied at the end to see which program of the two was preferred more in the different listening environments. Scores can range from 0 (the program was not preferred at all) to unlimited (dependent on the numbers of trials ran and samples tested). Higher scores will indicate that the program was preferred more than the other program and lowers scores mean the program was not preferred when compared to the other program.
Outcome measures
| Measure |
Participants With Hearing Loss
n=20 Participants
Individuals with hearing loss that meet the candidacy to wear hearing aids. All interventions are associated with the fitting of binaural hearing aids with various coupling methods. All participants will be assessed under all interventions.
Hearing Aid - Standard Curve: Our current hearing aids which will be programmed to our standard frequency response curve.
Hearing Aid - Variation #1: Hearing aids that will have the frequency response curve adjusted and fit to the participant's hearing loss.
|
|---|---|
|
Sound Quality Ratings - Noise Intrusion - Program 1
Mean # of times Standard Curve was preferred in terms of noise intrusion
|
3.84 Mean Preference Counts per Participant
Standard Deviation 2.81
|
|
Sound Quality Ratings - Noise Intrusion - Program 1
Mean # of times variation #1 was preferred in terms of noise intrusion
|
6.21 Mean Preference Counts per Participant
Standard Deviation 2.18
|
|
Sound Quality Ratings - Noise Intrusion - Program 1
Mean # of times there was no preference between the two curves in terms of noise intrusion
|
2.72 Mean Preference Counts per Participant
Standard Deviation 1.41
|
PRIMARY outcome
Timeframe: 10 MinutesParticipants will be asked to wear hearing aids and as they are exposed to listening environments. They will be asked to toggle between the two hearing aid programs (standard curve and variation #1) and determine which program provides increased listening comfort. Participants will be asked to make these ratings while seated in a sound booth. Scores will be tallied at the end to see which program of the two was preferred more in the different listening environments. Scores can range from 0 (the program was not preferred at all) to unlimited (dependent on the numbers of trials ran and samples tested). Higher scores will indicate that the program was preferred more than the other program and lowers scores mean the program was not preferred when compared to the other program.
Outcome measures
| Measure |
Participants With Hearing Loss
n=20 Participants
Individuals with hearing loss that meet the candidacy to wear hearing aids. All interventions are associated with the fitting of binaural hearing aids with various coupling methods. All participants will be assessed under all interventions.
Hearing Aid - Standard Curve: Our current hearing aids which will be programmed to our standard frequency response curve.
Hearing Aid - Variation #1: Hearing aids that will have the frequency response curve adjusted and fit to the participant's hearing loss.
|
|---|---|
|
Sound Quality Ratings - Listening Comfort - Program 2
Mean # of times Standard Curve was preferred in terms of listening comfort.
|
1.55 Mean Preference Counts per Participant
Standard Deviation 0.82
|
|
Sound Quality Ratings - Listening Comfort - Program 2
Mean # of times Variation #1 curve was preferred in terms of listening comfort.
|
1.71 Mean Preference Counts per Participant
Standard Deviation 0.726
|
|
Sound Quality Ratings - Listening Comfort - Program 2
Mean # of times there was no preference between the two curves in terms of listening comfort.
|
1.46 Mean Preference Counts per Participant
Standard Deviation 0.519
|
PRIMARY outcome
Timeframe: 10 MinutesParticipants will be asked to wear hearing aids and as they are exposed to listening environments. They will be asked to toggle between the two hearing aid programs (standard curve and variation #1) and determine which program they prefer to listen to. Participants will be asked to make these ratings while seated in a sound booth. Scores will be tallied at the end to see which program of the two was preferred more in the different listening environments. Scores can range from 0 (the program was not preferred at all) to unlimited (dependent on the numbers of trials run and samples tested). Higher scores will indicate that the program was preferred more than the other program and lowers scores mean the program was not preferred when compared to the other program.
Outcome measures
| Measure |
Participants With Hearing Loss
n=20 Participants
Individuals with hearing loss that meet the candidacy to wear hearing aids. All interventions are associated with the fitting of binaural hearing aids with various coupling methods. All participants will be assessed under all interventions.
Hearing Aid - Standard Curve: Our current hearing aids which will be programmed to our standard frequency response curve.
Hearing Aid - Variation #1: Hearing aids that will have the frequency response curve adjusted and fit to the participant's hearing loss.
|
|---|---|
|
Sound Quality Ratings - Overall Preference - Program 2
Mean # of times Standard Curve was preferred in terms of overall preference.
|
1.5 Mean Preference Counts per Participant
Standard Deviation 0.85
|
|
Sound Quality Ratings - Overall Preference - Program 2
Mean # of times Variation #1 curve was preferred in terms of overall preference.
|
1.79 Mean Preference Counts per Participant
Standard Deviation 0.69
|
|
Sound Quality Ratings - Overall Preference - Program 2
Mean # of times there was no preference between the two curves in terms of overall preference.
|
1.54 Mean Preference Counts per Participant
Standard Deviation 0.66
|
PRIMARY outcome
Timeframe: 10 MinutesParticipants will be asked to wear hearing aids and as they are exposed to listening environments. They will be asked to toggle between the two hearing aid programs (Standard curve and variation #1) and determine which program has more noise intrusion. Participants will be asked to make these ratings while seated in a sound booth. Scores will be tallied at the end to see which program of the two was preferred more in the different listening environments. Scores can range from 0 (the program was not preferred at all) to unlimited (dependent on the numbers of trials ran and samples tested). Higher scores will indicate that the program was preferred more than the other program and lowers scores mean the program was not preferred when compared to the other program.
Outcome measures
| Measure |
Participants With Hearing Loss
n=20 Participants
Individuals with hearing loss that meet the candidacy to wear hearing aids. All interventions are associated with the fitting of binaural hearing aids with various coupling methods. All participants will be assessed under all interventions.
Hearing Aid - Standard Curve: Our current hearing aids which will be programmed to our standard frequency response curve.
Hearing Aid - Variation #1: Hearing aids that will have the frequency response curve adjusted and fit to the participant's hearing loss.
|
|---|---|
|
Sound Quality Ratings - Noise Intrusion - Program 2
Mean # of times Standard Curve was preferred in terms of noise intrusion
|
1.45 Mean Preference Counts per Participant
Standard Deviation 0.82
|
|
Sound Quality Ratings - Noise Intrusion - Program 2
Mean # of times variation #1 was preferred in terms of noise intrusion
|
1.77 Mean Preference Counts per Participant
Standard Deviation 0.83
|
|
Sound Quality Ratings - Noise Intrusion - Program 2
Mean # of times there was no preference between the two curves in terms of noise intrusion
|
1.5 Mean Preference Counts per Participant
Standard Deviation 0.52
|
PRIMARY outcome
Timeframe: 10 MinutesParticipants will be asked to wear hearing aids and as they are exposed to listening environments. They will be asked to toggle between the two hearing aid programs (standard curve and variation #1) and determine which program provides increased listening comfort. Participants will be asked to make these ratings while seated in a sound booth. Scores will be tallied at the end to see which program of the two was preferred more in the different listening environments. Scores can range from 0 (the program was not preferred at all) to unlimited (dependent on the numbers of trials ran and samples tested). Higher scores will indicate that the program was preferred more than the other program and lowers scores mean the program was not preferred when compared to the other program.
Outcome measures
| Measure |
Participants With Hearing Loss
n=20 Participants
Individuals with hearing loss that meet the candidacy to wear hearing aids. All interventions are associated with the fitting of binaural hearing aids with various coupling methods. All participants will be assessed under all interventions.
Hearing Aid - Standard Curve: Our current hearing aids which will be programmed to our standard frequency response curve.
Hearing Aid - Variation #1: Hearing aids that will have the frequency response curve adjusted and fit to the participant's hearing loss.
|
|---|---|
|
Sound Quality Ratings - Listening Comfort - Program 3
Mean # of times Standard Curve was preferred in terms of listening comfort.
|
1.73 Mean Preference Counts per Participant
Standard Deviation 0.79
|
|
Sound Quality Ratings - Listening Comfort - Program 3
Mean # of times Variation #1 curve was preferred in terms of listening comfort.
|
1.54 Mean Preference Counts per Participant
Standard Deviation 0.66
|
|
Sound Quality Ratings - Listening Comfort - Program 3
Mean # of times there was no preference between the two curves in terms of listening comfort.
|
2.00 Mean Preference Counts per Participant
Standard Deviation 1.00
|
PRIMARY outcome
Timeframe: 10 MinutesParticipants will be asked to wear hearing aids and as they are exposed to listening environments. They will be asked to toggle between the two hearing aid programs (standard curve and variation #1) and determine which program they prefer to listen to. Participants will be asked to make these ratings while seated in a sound booth. Scores will be tallied at the end to see which program of the two was preferred more in the different listening environments. Scores can range from 0 (the program was not preferred at all) to unlimited (dependent on the numbers of trials run and samples tested). Higher scores will indicate that the program was preferred more than the other program and lowers scores mean the program was not preferred when compared to the other program.
Outcome measures
| Measure |
Participants With Hearing Loss
n=20 Participants
Individuals with hearing loss that meet the candidacy to wear hearing aids. All interventions are associated with the fitting of binaural hearing aids with various coupling methods. All participants will be assessed under all interventions.
Hearing Aid - Standard Curve: Our current hearing aids which will be programmed to our standard frequency response curve.
Hearing Aid - Variation #1: Hearing aids that will have the frequency response curve adjusted and fit to the participant's hearing loss.
|
|---|---|
|
Sound Quality Ratings - Overall Preference - Program 3
Mean # of times Standard Curve was preferred in terms of overall preference.
|
1.80 Mean Preference Counts per Participant
Standard Deviation 0.77
|
|
Sound Quality Ratings - Overall Preference - Program 3
Mean # of times Variation #1 curve was preferred in terms of overall preference.
|
1.54 Mean Preference Counts per Participant
Standard Deviation 0.66
|
|
Sound Quality Ratings - Overall Preference - Program 3
Mean # of times there was no preference between the two curves in terms of overall preference.
|
2.17 Mean Preference Counts per Participant
Standard Deviation 0.98
|
PRIMARY outcome
Timeframe: 10 minutesParticipants will be asked to wear hearing aids and as they are exposed to listening environments. They will be asked to toggle between the two hearing aid programs (standard curve and variation #1) and determine which program has better speech clarity. Participants will be asked to make these ratings while seated in a sound booth. Scores will be tallied at the end to see which program of the two was preferred more in the different listening environments. Scores can range from 0 (the program was not preferred at all) to unlimited (dependent on the numbers of trials ran and samples tested). Higher scores will indicate that the program was preferred more than the other program and lowers scores mean the program was not preferred when compared to the other program.
Outcome measures
| Measure |
Participants With Hearing Loss
n=20 Participants
Individuals with hearing loss that meet the candidacy to wear hearing aids. All interventions are associated with the fitting of binaural hearing aids with various coupling methods. All participants will be assessed under all interventions.
Hearing Aid - Standard Curve: Our current hearing aids which will be programmed to our standard frequency response curve.
Hearing Aid - Variation #1: Hearing aids that will have the frequency response curve adjusted and fit to the participant's hearing loss.
|
|---|---|
|
Sound Quality Ratings - Speech Clarity - Program 3
Mean # of times Standard Curve was preferred in terms of speech clarity
|
1.73 Mean Preference Counts per Participant
Standard Deviation 0.79
|
|
Sound Quality Ratings - Speech Clarity - Program 3
Mean # of times Variation #1 was preferred in terms of speech clarity
|
1.67 Mean Preference Counts per Participant
Standard Deviation 0.70
|
|
Sound Quality Ratings - Speech Clarity - Program 3
Mean # of times there was no preference between the two curves in terms of speech clarity
|
1.90 Mean Preference Counts per Participant
Standard Deviation 0.87
|
PRIMARY outcome
Timeframe: 10 MinutesParticipants will be asked to wear hearing aids and as they are exposed to listening environments. They will be asked to toggle between the two hearing aid programs (Standard curve and variation #1) and determine which program has more noise intrusion. Participants will be asked to make these ratings while seated in a sound booth. Scores will be tallied at the end to see which program of the two was preferred more in the different listening environments. Scores can range from 0 (the program was not preferred at all) to unlimited (dependent on the numbers of trials ran and samples tested). Higher scores will indicate that the program was preferred more than the other program and lowers scores mean the program was not preferred when compared to the other program.
Outcome measures
| Measure |
Participants With Hearing Loss
n=20 Participants
Individuals with hearing loss that meet the candidacy to wear hearing aids. All interventions are associated with the fitting of binaural hearing aids with various coupling methods. All participants will be assessed under all interventions.
Hearing Aid - Standard Curve: Our current hearing aids which will be programmed to our standard frequency response curve.
Hearing Aid - Variation #1: Hearing aids that will have the frequency response curve adjusted and fit to the participant's hearing loss.
|
|---|---|
|
Sound Quality Ratings - Noise Intrusion - Program 3
Mean # of times Standard Curve was preferred in terms of noise intrusion
|
1.75 Mean Preference Counts per Participant
Standard Deviation 0.75
|
|
Sound Quality Ratings - Noise Intrusion - Program 3
Mean # of times variation #1 was preferred in terms of noise intrusion
|
1.50 Mean Preference Counts per Participant
Standard Deviation 0.65
|
|
Sound Quality Ratings - Noise Intrusion - Program 3
Mean # of times there was no preference between the two curves in terms of noise intrusion
|
1.64 Mean Preference Counts per Participant
Standard Deviation 0.81
|
PRIMARY outcome
Timeframe: 10 MinutesParticipants will be asked to wear hearing aids and as they are exposed to listening environments. They will be asked to toggle between the two hearing aid programs (standard curve and variation #1) and determine which program they prefer to listen to. Participants will be asked to make these ratings while seated in a sound booth. Scores will be tallied at the end to see which program of the two was preferred more in the different listening environments. Scores can range from 0 (the program was not preferred at all) to unlimited (dependent on the numbers of trials run and samples tested). Higher scores will indicate that the program was preferred more than the other program and lowers scores mean the program was not preferred when compared to the other program.
Outcome measures
| Measure |
Participants With Hearing Loss
n=20 Participants
Individuals with hearing loss that meet the candidacy to wear hearing aids. All interventions are associated with the fitting of binaural hearing aids with various coupling methods. All participants will be assessed under all interventions.
Hearing Aid - Standard Curve: Our current hearing aids which will be programmed to our standard frequency response curve.
Hearing Aid - Variation #1: Hearing aids that will have the frequency response curve adjusted and fit to the participant's hearing loss.
|
|---|---|
|
Sound Quality Ratings - Overall Preference - Program 4
Mean # of times Standard Curve was preferred in terms of overall preference.
|
1.30 Mean Preference Counts per Participant
Standard Deviation 0.83
|
|
Sound Quality Ratings - Overall Preference - Program 4
Mean # of times Variation #1 curve was preferred in terms of overall preference.
|
1.60 Mean Preference Counts per Participant
Standard Deviation 0.51
|
|
Sound Quality Ratings - Overall Preference - Program 4
Mean # of times there was no preference between the two curves in terms of overall preference.
|
1.94 Mean Preference Counts per Participant
Standard Deviation 0.92
|
SECONDARY outcome
Timeframe: 30 MinutesPopulation: 1 participants data was removed as they were not accurate in their response and the US Matrix test software could not accurately measure their SRT50 score although mutliple attempts were made.
Oldenburg Sentence Test (OLSA) sentences were presented to participants while they were aided under the standard curve, aided under variation #1 frequency response curve, and unaided. Participants are presented with sentences from a loudspeaker placed Infront of them and noise from 7 loudspeakers placed around them (8 speakers placed 30 degrees apart from each other). Participants were asked to repeat what they heard. Correct repetition results in the next sentence to be presented at a lower sound level. Incorrect repetition results in an increase in presentation level for the next sentence. 20 sentences are presented for each condition (i.e., unaided, aided with the standard curve, and aided with the proposed frequency response curve). decibel signal to noise ratio (dB SNR) at 50% correctness scores were calculated at the end and compared amongst the three conditions. There are no minimum or maximum values, however lower scores indicate better performance.
Outcome measures
| Measure |
Participants With Hearing Loss
n=19 Participants
Individuals with hearing loss that meet the candidacy to wear hearing aids. All interventions are associated with the fitting of binaural hearing aids with various coupling methods. All participants will be assessed under all interventions.
Hearing Aid - Standard Curve: Our current hearing aids which will be programmed to our standard frequency response curve.
Hearing Aid - Variation #1: Hearing aids that will have the frequency response curve adjusted and fit to the participant's hearing loss.
|
|---|---|
|
US Matrix Test in Noise Results - dB SNR 50%
Hearing Aid - Variation # 1 - Mean SRT50% Score
|
-4.69 dB SNR - (units on a scale)
Standard Deviation 2.35
|
|
US Matrix Test in Noise Results - dB SNR 50%
Hearing Aid - Standard Curve - Mean SRT50% Score
|
-5.38 dB SNR - (units on a scale)
Standard Deviation 2.15
|
|
US Matrix Test in Noise Results - dB SNR 50%
Hearing Aid - Unaided - Mean SRT50% Score
|
-0.85 dB SNR - (units on a scale)
Standard Deviation 4.7
|
SECONDARY outcome
Timeframe: 1 hourParticipants will be asked to listen to various streamed stimuli via headphones. They will be asked to toggle between three programs (standard curve, variation #2, and variation #3) and determine which one they prefer the most, which one the prefer the least, and which one they prefer in the middle. Participants will be asked to make these ratings while seated in a sound booth. Scores will be tallied at the end to see which program was constantly the most preferred across the various stimuli. Highers rankings will indicate that the program was preferred more than the other program and lower rankings mean the program was not preferred when compared to the other program.
Outcome measures
| Measure |
Participants With Hearing Loss
n=20 Participants
Individuals with hearing loss that meet the candidacy to wear hearing aids. All interventions are associated with the fitting of binaural hearing aids with various coupling methods. All participants will be assessed under all interventions.
Hearing Aid - Standard Curve: Our current hearing aids which will be programmed to our standard frequency response curve.
Hearing Aid - Variation #1: Hearing aids that will have the frequency response curve adjusted and fit to the participant's hearing loss.
|
|---|---|
|
Sound Quality Ratings - Streaming
Count of times Variation # 2 was rated the highest.
|
120 Ratings
|
|
Sound Quality Ratings - Streaming
Count of times Variation #3 was rated the highest.
|
119 Ratings
|
|
Sound Quality Ratings - Streaming
Count of times Variation #4 was rated the highest
|
65 Ratings
|
|
Sound Quality Ratings - Streaming
Count of times Variation #2 was rated in the middle.
|
56 Ratings
|
|
Sound Quality Ratings - Streaming
Count of times Variation #3 was rated in the middle.
|
83 Ratings
|
|
Sound Quality Ratings - Streaming
Count of times Variation #4 was rated in the middle.
|
89 Ratings
|
|
Sound Quality Ratings - Streaming
Count of times Variation #2 was rated the lowest.
|
128 Ratings
|
|
Sound Quality Ratings - Streaming
Count of times Variation #3 was rated the lowest.
|
102 Ratings
|
|
Sound Quality Ratings - Streaming
Count of times Variation #4 was rated the lowest.
|
74 Ratings
|
Adverse Events
Participants With Hearing Loss - Sound Quality Ratings Task - Live
Participants With Hearing Loss - Sound Quality Ratings Task - Streaming
Participants With Hearing Loss - US Matrix Test Task
Serious adverse events
Adverse event data not reported
Other adverse events
Adverse event data not reported
Additional Information
Results disclosure agreements
- Principal investigator is a sponsor employee
- Publication restrictions are in place